United States Of America Original Gas Engines Patent 1921
$ 43.99$ 26.39
Availability: 42 in stock
Country/Region of Manufacture:United States
Condition:Used
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Description
United States Of America Original Gas Engines Patent 1921. Patent no. 1370503. I have a total of 12 patents by Walter W. Macfarren, of Pittsburgh, and Thomas W. Gray, of Heidleberg, Pennsylvania. Sealed by United States Patent Office. Seven pages total, two with detailed drawings and four pages of how to build the engine. Excellent condition and frameable.